Which of the following pairs of ions is isoelectronic and isostructura

1.	Which of the following pairs of ions is isoelectronic and isostructural ?
Answer» `CO_(3)^(2-) , NO_(3)^(-)` `CIO_(3)^(-) , CO_(3)^(2-)` `SO_(3)^(2-), NO_(3)^(-)` `CIO_(3)^(-), SO_(3)^(2-)` Solution :In `CO_(3)^(2-)` , no. of electrons =` 6 + 3 xx 8 + 2 = 32 ` Shape = TRIGONAL planar In `NO_(3)^(-)`, no . of electrons= ` 7 + 3 xx 8 + 1= 32` Shape = trigonal planer In `SO_(3)^(2-) `, no of electrons = ` 16 + 3 xx 8 + 2 = 42 ` Shape = pyramidal In `CIO_(3)^(-)`, no. of electrons ` 17 + 3 xx 8 + 1= 42` Shape = pyramidal

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